jonas.thornvall@gmail.com wrote:> Den torsdagen den 1:e augusti 2013 kl. 20:35:32 UTC+2 skrev Peter Percival:>> jonas.thornvall@gmail.com wrote:>>>>>>>>> A polygon with infinite number of vertices is a circle. And no polygons can have infinitly number of vertices, go figure.>>>>>>>> What is one supposed to "figure" when a blatant contradiction is uttered?>>>> The truth about circles they are made up of linesegments.

No they're not.

-- Nam Nguyen in sci.logic in the thread 'Q on incompleteness proof'on 16/07/2013 at 02:16: "there can be such a group where informallyit's impossible to know the truth value of the abelian expressionAxy[x + y = y + x]".